$100 AUD to get menu/site displaying correctly

I'm desperately trying to finish a client's website and am having two issues:

1. I can't get the design to display the same in IE6, IE7, IE8 and Firefox. (It displays perfectly in FF and IE8 but totally screwed up in IE6 and IE7, in different ways.)

2. The Son of Suckerfish drop-down menu displays correctly, once again, in FF and IE8, but not IE6/7 - in those, the drop-down appears to the right of the parent item (below it, but to the right of where it should be).

I've re-worked the template/CSS about five times and probably spent around 5-10 hours trying to fix the damn thing and frankly I'm over it. I can't even be bothered looking for an alternative menu to fix the problem.

A screenshot from Firefox is attached showing the submenu working properly.

So, if someone is interested in tackling these problems for me, there's $100 Australian Dollars in it for you. Please reply or contact me directly if you're interested or want more information. I need this done within the next three days.